Has anyone had any experience with these guys? I know they do mainly Mustang work, but they also do Focus, and are authorized SCT tuners.

http://www.dynospeedracing.com/index.php#

I would ask on some mustang forums. Judging by the cars they've worked on on their site, seems like a pretty good place.

that place is very good....i have been there(though not to have work done)a couple of times when i had my mustang....not sure if they have done any work on tours,but i'm sure they could tune your car for you...